Home Postcodes by state WA 6627 Postcode 6627 6627 is the postcode for Canna, WA. Localities with postcode 6627CannaWA Postcode 6627 State or territory Western Australia (WA) Localities 1 Council area Morawa Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6625 · Postcode 6628